Along the Camino Olvidado from Bilbao to Cacabelos, weather shifts from Atlantic moisture near the coast to more continental conditions inland. Late spring and early autumn feature longer daylight and mixed sunshine with quick showers; May and September align with steadier spells in these periods. Mid‑summer trends warmer with occasional storms on exposed stretches, while winter brings colder, wetter episodes and potential snow or ice on higher ground and shorter days.